A number of datasets are valuable for understanding UV levels, including data on clouds, temperature and aerosols. The following sites provide information on obtaining some of these datasets. Please also see the page on ozone for additional ozone datasets.

Data Sets of potential interest to the users
	NASA offers data and images from Earth Probe TOMS (July 25, 1996 to the present).
	NASA offers data and plots from each of their TOMS instruments. Data include ozone, UV estimates and reflectivity.
	NOAA's Climate Prediction Center has a number of stratospheric data products including TOVS and SBUV-2 images and temperature data.
	SEER (Surveillance, Epidemiology, and End Results) data available from the National Cancer Institute. Technical information of interest to people looking for numbers on cancer statistics.
	Unisys offers 12 hour forecasts for clouds over the U.S.
	Unisys offers 20 hour forecasts for clouds over the U.S.
	NASA offers data and images from ADEOS TOMS (September 11, 1996 -June 29, 1997).
	The British Atmospheric Data Centre offers datasets on a number of different parameters including total ozone and stratospheric ozone from past experiments and extensive links to other web pages containing information on a wide range of topics.
	The SUSIM experiment measures extraterrestrial ultraviolet spectral irradiance aboard UARS and ATLAS satellites.
	The SOLar STellar Irradiance Comparison Experiment (SOLSTICE) is a NASA project that provides the scientific community with long-term, accurate measurements of the Solar ultraviolet (UV) and far ultraviolet (FUV) radiation.
	A description of the British Antarctic Survey including information on obtaining data and information for schools and students.
	The WMO Ozone and UV Data Center operated by the Canadian government has ozone data from over 300 stations and UV data from over 20 stations.
	Goddard Institute for Space Studies includes information on climate change including cloud and stratospheric aerosol data.
	US National Climatic Data Center has a number of data sets, both ground based and satellite.
	NASA's atmospheric sciences data center provides a number of useful data sources as well as an on-line radiative transfer program.
	WMO's Data Center for Greenhouse gases including CO2 and CFC's.
	WMO World Data Centre for Aerosols, Ispra, ITALY
	World Radiation Data Centre(WRDC): WMO World Radiation Data Centre St. Petersburg, RUSSIA

External pages are subject to their own privacy and security policies. The WMO, CIRES and/or the University of Colorado has no control over the contents of external web pages. Inclusion of web sites is not an endorsement of any particular product, company, information provider, or the content of the referenced sites. If you know of additional web sites which should be included on this page, please email the appropriate information to either: E. C. Weatherhead or Gregory Noonan.
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